Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 28

Waxing Gibbous 79%

11:05

04:16

00 OK
01 OK
02 OK
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 OK
11 Bad
12 Bad
13 Bad
14 OK
15 OK
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:48, Set: 16:37, Transit: 12:13. Moon - Rise: 11:05, Set: 04:16. Civil Dark: 17:15 - 07:10. Nautical Dark: 17:57 - 06:28. Astro Dark: 18:38 - 05:48

Total Clouds (% Sky Obscured)

18
24
30
45
48
54
48
57
47
57
48
91
73
53
30
32
50
67
77
74
61
99
99
100

Low Clouds (% Sky Obscured)

18
24
30
45
48
50
40
46
39
28
33
51
47
42
30
32
50
57
49
38
37
41
54
56

Medium Clouds (% Sky Obscured)

0
0
11
13
11
7
8
10
8
4
1
0
0
0
0
0
0
0
3
3
4
3
3
63

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
3
41
30
86
26
13
4
0
3
17
26
25
50
96
98
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
2
37
42
26
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
8
7
6
6
6
5
4
3
3
2
2
5
5
5
4
2
4
3
3
5
5
4
4

Chance of Frost

Temperature (°C)

4
3
3
3
3
3
2
2
2
2
4
5
6
6
6
6
5
4
4
4
3
3
3
3

Feels Like (°C)

0
2
2
1
1
1
1
1
1
2
3
4
3
5
5
6
5
4
3
3
2
1
0
-0

Dew Point (°C)

3
3
3
2
2
2
1
1
1
1
2
2
3
3
3
3
3
2
2
2
2
2
2
2

Relative Humidity (%)

94
94
94
94
94
93
93
93
91
89
85
80
79
79
81
82
86
86
88
88
88
89
91
93

Pressure (mb)

989
990
991
991
992
992
993
994
994
995
995
995
996
996
996
997
997
997
997
998
998
999
999
999

Ozone (du)

407
413
420
433
440
450
449
450
457
460
467
471
476
482
479
478
483
483
488
494
496
493
486
483

Thursday 29

Waxing Gibbous 88%

11:55

05:38

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:46, Set: 16:39, Transit: 12:13. Moon - Rise: 11:55, Set: 05:38. Civil Dark: 17:17 - 07:09. Nautical Dark: 17:59 - 06:27. Astro Dark: 18:39 - 05:46

Total Clouds (% Sky Obscured)

100
98
94
98
100
100
100
100
88
93
88
90
90
95
69
70
68
81
83
48
81
76
81
76

Low Clouds (% Sky Obscured)

61
84
85
93
100
94
100
100
77
79
82
84
87
94
69
70
68
79
83
47
80
72
76
71

Medium Clouds (% Sky Obscured)

100
89
67
84
100
57
32
16
7
15
0
0
0
0
0
0
0
0
1
2
1
1
1
2

High Clouds (% Sky Obscured)

100
69
66
63
64
92
12
4
4
2
2
0
0
0
0
0
2
3
3
3
2
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
1
8
13
16
16
6
2
11
4
2
3
1
1
1
1
0
0
0
0
0
3
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
5
5
5
6
6
6
7
7
8
9
11
10
11
11
11
12
11
12
13
12
12
12
13

Chance of Frost

Temperature (°C)

2
3
3
3
3
3
3
4
4
4
4
5
5
5
5
5
4
4
4
4
3
3
3
3

Feels Like (°C)

0
-0
-0
-0
-0
0
0
0
1
1
1
1
1
1
1
3
1
-0
-1
-1
-1
-0
-1
-1

Dew Point (°C)

1
2
2
2
2
2
2
3
3
3
3
4
3
3
3
3
3
3
2
2
2
2
2
2

Relative Humidity (%)

93
93
94
93
93
93
94
94
94
94
93
93
89
88
89
88
89
91
91
89
93
94
93
93

Pressure (mb)

999
999
999
999
999
999
999
999
1000
1000
1000
1000
1000
999
998
998
998
998
998
998
997
997
997
997

Ozone (du)

481
474
470
469
470
473
470
464
462
466
471
471
452
430
402
377
374
367
366
371
372
371
372
373

Friday 30

Waxing Gibbous 95%

13:06

06:42

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:45, Set: 16:41, Transit: 12:13. Moon - Rise: 13:06, Set: 06:42. Civil Dark: 17:19 - 07:07. Nautical Dark: 18:00 - 06:25. Astro Dark: 18:41 - 05:45

Total Clouds (% Sky Obscured)

64
74
84
76
92
94
98
97
97
96
94
100
100
100
100
100
96
97
98
98
99
88
78
70

Low Clouds (% Sky Obscured)

56
72
83
76
83
84
66
87
79
88
84
100
100
100
100
98
90
86
85
83
82
77
72
66

Medium Clouds (% Sky Obscured)

15
2
46
55
66
81
97
95
95
91
53
68
99
97
97
98
35
29
39
93
97
83
72
60

High Clouds (% Sky Obscured)

2
3
8
30
37
37
30
3
3
3
14
49
70
70
65
64
0
65
41
45
40
40
30
25

ISS Passover

Visibility (miles)

9
9
9
9
9
4
4
9
5
9
9
9
9
9
9
5
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
1
6
21
70
80
68
58
58
31
14
16
15
33
69
61
39
10
12
13
13
23
13
33

Precipitation Amount (mm)

0
0
0
0
0.5
0.7
0.4
0.3
0.3
0
0
0
0
0
0.6
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
13
14
14
14
14
14
14
15
15
15
15
14
15
14
13
12
11
11
11
10
9
9
10

Chance of Frost

Temperature (°C)

3
3
3
4
4
4
4
4
5
5
5
5
6
6
6
5
5
5
5
5
5
6
6
5

Feels Like (°C)

-1
-2
-1
-2
-2
-1
-1
-1
-1
-0
0
-0
1
1
1
-0
-1
0
0
0
0
1
1
0

Dew Point (°C)

2
2
2
3
2
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Relative Humidity (%)

93
93
93
89
88
89
94
94
94
94
94
93
91
90
90
93
91
91
91
90
91
91
91
91

Pressure (mb)

996
996
995
995
994
994
993
993
993
993
993
993
992
991
991
990
990
990
990
990
990
990
990
990

Ozone (du)

372
370
371
374
374
374
376
378
386
387
387
388
390
391
398
397
397
405
408
408
410
414
417
418

Saturday 31

Waxing Gibbous 99%

14:33

07:25

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:43, Set: 16:43, Transit: 12:13. Moon - Rise: 14:33, Set: 07:25. Civil Dark: 17:20 - 07:06. Nautical Dark: 18:02 - 06:24. Astro Dark: 18:42 - 05:44

Total Clouds (% Sky Obscured)

79
88
98
96
93
90
92
95
97
84
69
62
87
95
98
98
97
97
95
93
92
87
52
59

Low Clouds (% Sky Obscured)

75
82
90
86
83
80
79
80
80
71
64
59
62
66
64
64
60
56
61
67
72
68
52
57

Medium Clouds (% Sky Obscured)

18
84
96
67
88
75
89
34
30
25
20
16
20
33
94
94
92
91
81
71
22
17
12
9

High Clouds (% Sky Obscured)

20
15
15
10
2
0
3
2
11
8
1
2
35
50
45
45
33
45
3
40
2
0
0
0

ISS Passover

Visibility (miles)

9
9
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

35
53
56
42
29
34
32
31
6
12
15
7
13
21
24
14
16
9
10
8
10
4
3
2

Precipitation Amount (mm)

0
0.2
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
10
11
10
8
7
5
4
4
5
6
7
7
7
6
6
8
5
6
6
6
6
6

Chance of Frost

Temperature (°C)

5
5
5
5
5
6
6
5
5
5
6
7
8
8
8
8
7
7
6
6
6
6
5
5

Feels Like (°C)

1
1
2
2
1
2
3
4
4
3
4
5
6
4
5
5
4
2
3
3
3
3
2
3

Dew Point (°C)

5
4
5
5
5
5
4
4
4
4
5
5
5
4
4
5
5
3
4
3
4
5
5
4

Relative Humidity (%)

94
93
96
96
94
94
91
93
93
91
90
87
81
77
78
84
84
74
83
81
85
96
96
96

Pressure (mb)

990
990
990
990
990
991
991
992
993
993
994
995
995
996
996
996
997
997
998
998
998
998
998
998

Ozone (du)

419
423
425
426
427
429
430
431
432
431
430
430
427
427
425
425
418
413
412
414
427
447
452
458

Sunday 1

Full Moon 100%

16:06

07:52

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 OK
17 OK
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:42, Set: 16:45, Transit: 12:13. Moon - Rise: 16:06, Set: 07:52. Civil Dark: 17:22 - 07:04. Nautical Dark: 18:04 - 06:23. Astro Dark: 18:44 - 05:42

Total Clouds (% Sky Obscured)

56
80
100
99
98
97
96
95
94
93
90
88
83
79
76
61
44
27
52
76
100
100
100
100

Low Clouds (% Sky Obscured)

56
78
80
79
82
83
90
89
91
88
85
82
81
79
76
61
44
27
32
37
42
55
64
72

Medium Clouds (% Sky Obscured)

20
29
43
94
88
82
73
58
50
45
40
40
29
19
9
7
4
0
15
24
36
50
64
78

High Clouds (% Sky Obscured)

2
24
45
40
45
45
40
30
25
30
25
20
12
6
3
2
2
0
33
67
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
4
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
10
14
31
28
23
22
29
37
31
42
43
42
31
17
6
4
3
5
3
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
6
6
6
7
7
7
7
8
9
12
14
11
9
8
6
4
5
5
5
5
4
4

Chance of Frost

Temperature (°C)

5
4
4
4
5
5
5
5
5
5
6
7
7
7
8
8
7
7
5
5
5
4
4
4

Feels Like (°C)

3
3
1
1
1
1
1
1
1
1
1
2
1
1
1
2
2
3
3
1
2
2
1
1

Dew Point (°C)

4
4
4
4
4
4
4
4
4
5
5
5
6
5
5
5
5
4
4
4
4
4
4
3

Relative Humidity (%)

96
94
96
98
96
94
94
94
96
96
94
90
90
87
82
79
84
85
90
91
93
94
94
93

Pressure (mb)

998
998
998
997
997
997
997
997
997
997
997
998
998
998
998
998
999
999
1000
1000
1000
1000
1000
1000

Ozone (du)

455
430
420
413
408
402
398
395
385
383
385
386
389
389
389
389
387
385
383
384
385
385
385
385

Monday 2

Waning Gibbous 100%

17:37

08:11

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:40, Set: 16:47, Transit: 12:13. Moon - Rise: 17:37, Set: 08:11. Civil Dark: 17:24 - 07:03. Nautical Dark: 18:05 - 06:21. Astro Dark: 18:46 - 05:41

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
85
69
50
58
68
72
83
94
100
98
95
88
91
93
94
95
97
100

Low Clouds (% Sky Obscured)

73
70
71
62
46
33
38
40
41
44
47
49
64
79
91
85
82
83
84
85
86
84
80
76

Medium Clouds (% Sky Obscured)

87
93
100
100
100
100
75
50
23
38
53
68
69
69
70
75
75
70
70
50
45
49
63
76

High Clouds (% Sky Obscured)

100
100
100
99
99
98
71
43
15
15
20
20
20
20
25
25
25
30
32
53
72
82
91
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

3
2
0
1
1
0
0
0
0
1
1
0
6
9
12
12
11
8
11
13
15
21
22
19

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
5
5
6
7
7
7
6
5
6
8
9
10
10
11
11
11
11
12
12
12
12
12

Chance of Frost

Temperature (°C)

4
4
4
4
4
4
4
4
4
4
5
6
7
7
7
7
7
6
6
6
6
5
5
5

Feels Like (°C)

2
1
1
2
1
1
1
0
1
0
1
1
1
3
2
2
2
2
2
1
1
0
0
0

Dew Point (°C)

3
3
4
4
3
3
3
3
3
3
4
5
5
5
5
5
5
5
4
4
4
4
4
4

Relative Humidity (%)

93
93
94
94
94
94
94
94
93
93
91
91
91
90
90
90
88
90
88
88
88
90
90
90

Pressure (mb)

1000
1000
1000
1000
1000
999
999
999
999
999
999
998
998
998
997
997
997
996
996
996
996
996
996
996

Ozone (du)

385
383
382
380
379
378
378
378
378
378
377
377
377
378
378
379
379
379
379
380
382
383
383
383

Tuesday 3

Waning Gibbous 98%

19:02

08:24

Sun - Rise: 07:38, Set: 16:49, Transit: 12:13. Moon - Rise: 19:02, Set: 08:24. Civil Dark: 17:26 - 07:01. Nautical Dark: 18:07 - 06:20. Astro Dark: 18:47 - 05:40

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Boston, Lincolnshire, United Kingdom (52.98,-0.02)

Generated: 28/01/26 00:14:02. Forecast: 28/01/26 to 03/02/26. Timezone: UTC+0.00